解题方法
1 . 已知椭圆
:
,
分别为椭圆
的左、右焦点,
为椭圆上一点,
,
.
(1)求椭圆
的方程;
(2)设
为椭圆
的右顶点,直线
是与椭圆交于
两点的任意一条直线,若
,证明直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f595683f69d5d6b5ca76408b0ff6ff17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efbe4a54a27dc48e3f52d6249bd1681.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f59747cee312ee5140643428cae79efa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-05-19更新
|
713次组卷
|
4卷引用:河南省部分校2022届高三5月质量检测理科数学试题
河南省部分校2022届高三5月质量检测理科数学试题江西省宜春市八校2022届高三下学期联合考试数学(文)试题江西省宜春市八校2022届高三下学期联考数学(理)试题(已下线)第五篇 向量与几何 专题9 完全四点形的调和性 微点2 完全四点形的调和性综合训练
名校
解题方法
2 . 已知椭圆
的离心率为
,左、右顶点分别为
,
,上下顶点分别为
,
,四边形
的面积为
.
(1)求椭圆的标准方程;
(2)不过点
的直线l交椭圆于P,Q两点,直线
和直线
的斜率之和为2,证明:直线l恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e5d91f4f631c580c155eba8c92bda4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
(1)求椭圆的标准方程;
(2)不过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655c413f509068d30b165f9d92bdba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ab3d7e6077fe7ec725a5637c8bdfee1.png)
您最近一年使用:0次
2022-05-18更新
|
1287次组卷
|
9卷引用:河南省新未来联盟2022届高三下学期5月联考理科数学试题
河南省新未来联盟2022届高三下学期5月联考理科数学试题河南省名校联盟2022届高三下学期5月数学模拟文科试题河南省濮阳市第一高级中学2021-2022学年高三上学期第一次质量检测理科数学试题河南省济源第一中学2022-2023学年高二下学期6月模拟检测数学试题豫南大联考2022届高三下学期毕业班理科数学试卷2022届普通高等学校全国统一模拟招生考试(新未来5月联考)文科数学试卷(全国乙卷)(已下线)9.5 三定问题及最值(精讲)(已下线)10.6 三定问题及最值(精讲)(已下线)专题9-2 圆锥曲线(解答题)-1
名校
解题方法
3 . 已知中心在原点O的椭圆E的长轴长为
,且与抛物线
有相同的焦点.
(1)求椭圆E的方程;
(2)若点H的坐标为(2,0),点
、
(
)是椭圆E上的两点,点A,B,H不共线,且∠OHA=∠OHB,证明:直线AB过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(1)求椭圆E的方程;
(2)若点H的坐标为(2,0),点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
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2022-05-11更新
|
891次组卷
|
6卷引用:河南宋基信阳实验中学2021-2022学年高二下学期转段考试(升高三)理科数学试题
河南宋基信阳实验中学2021-2022学年高二下学期转段考试(升高三)理科数学试题云南省德宏州2022届高三上学期期末教学质量检测数学(文)试题湖北省宜昌市夷陵中学2021-2022学年高二下学期诊断性检测数学试题云南省玉溪市第一中学2023届高三上学期开学考试数学试题 新疆克拉玛依市高级中学2022-2023学年高三下学期第一次闭环检测文科数学试题(已下线)专题3-6 抛物线综合大题归类(讲+练)-【巅峰课堂】2023-2024学年高二数学热点题型归纳与培优练(人教A版2019选择性必修第一册)
4 . 已知椭圆
的一个顶点为
,离心率为
.
(1)求椭圆C的方程;
(2)点P,Q在C上,且
,
①求证:直线PQ过定点;
②求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd99c5000629d7f49499d666e68f40d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C的方程;
(2)点P,Q在C上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e8b17a7840ae7b75590da92fa0965b.png)
①求证:直线PQ过定点;
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
您最近一年使用:0次
名校
解题方法
5 . 如图,点
是圆
:
上的动点,点
,线段
的垂直平分线交半径
于点
.
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965732335583232/2968009211592704/STEM/57eb72a3e8ae40d69d780d6028d6d09d.png?resizew=306)
(1)求点
的轨迹
的方程;
(2)点
为轨迹
与
轴负半轴的交点,不过点
且不垂直于坐标轴的直线
交椭圆
于
,
两点,直线
,
分别与
轴交于
,
两点.若
,
的横坐标之积是2,问:直线
是否过定点?如果是,求出定点坐标,如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553360f0476d7533adfae3d0e862946b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/513eafd10fa1ec0196562865517e0b09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2022/4/25/2965732335583232/2968009211592704/STEM/57eb72a3e8ae40d69d780d6028d6d09d.png?resizew=306)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77227d4d2b4a96829fd5ae1dd7cad688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a8c60eb762b0951c61153fc17ba91b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-04-28更新
|
1141次组卷
|
5卷引用:河南省信阳市信阳高级中学2022-2023学年高二下学期6月月考数学试题
名校
解题方法
6 . 已知
,
是椭圆E:
上的两点.
(1)求椭圆E的方程.
(2)若直线l与椭圆E交于C,D两点(C,D均不与点A重合),且以线段CD为直径的圆过点A,问:直线l是否过定点?若过定点,请求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3496a6f8c19e99aff51924c2faaee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a8ae1fadf1ce12828a94fcf5094377.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fef6303da730c2ced7f3fbd5e2103d.png)
(1)求椭圆E的方程.
(2)若直线l与椭圆E交于C,D两点(C,D均不与点A重合),且以线段CD为直径的圆过点A,问:直线l是否过定点?若过定点,请求出定点坐标;若不过定点,请说明理由.
您最近一年使用:0次
2022-04-28更新
|
543次组卷
|
5卷引用:河南省焦作市普通高中2021-2022学年高二下学期期中考试试卷文科数学试题
河南省焦作市普通高中2021-2022学年高二下学期期中考试试卷文科数学试题 河南省焦作市普通高中2021-2022学年高二下学期期中考试试卷理科数学试题(已下线)2022年全国高考乙卷数学(文)试题变式题13-16题(已下线)2022年全国高考乙卷数学(文)试题变式题21-23题(已下线)信息必刷卷02(理科专用)
名校
解题方法
7 . 已知椭圆
:
的右焦点为
,离心率为
,点
且
.
(1)求椭圆
的标准方程;
(2)若不垂直于
轴的直线与
相交于
,
两点,
,
均为整数,且满足
与
关于
轴对称,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381859c6a6e6ae2ef234c2ec97d2c4c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d956e1fa6f8a64e6509ee362fc0cd8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8bdc735a0085e808eaf2227016434fe.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若不垂直于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2022-04-09更新
|
498次组卷
|
2卷引用:河南省开封市2021-2022学年高三下学期核心模拟卷(中)文科数学试题
8 . 已知椭圆C:
经过点
,其右顶点为A(2,0).
(1)求椭圆C的方程;
(2)若点P,Q在椭圆C上,且满足直线AP与AQ的斜率之积为
.证明直线PQ经过定点,并求△APQ面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e454c7161999e2a67138869f59d319b.png)
(1)求椭圆C的方程;
(2)若点P,Q在椭圆C上,且满足直线AP与AQ的斜率之积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba8930e9a26a52a6b09740c1dddbd40e.png)
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2022-03-22更新
|
1172次组卷
|
5卷引用:河南省豫南省级示范高中联盟2021-2022学年高三下学期联考三文科数学试题
解题方法
9 . 椭圆
离心率为
,过点
.
(1)求椭圆C的方程;
(2)过
的直线交椭圆于A,B两点,A关于x轴对称点为E,求证:直线BE过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(1)求椭圆C的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a08e1f3a9fc4265c20cb381071a322e.png)
您最近一年使用:0次
名校
解题方法
10 . 已知椭圆
的上、下顶点分别为A,B,离心率为
,椭圆C上的点与其右焦点F的最短距离为
.
(1)求椭圆C的标准方程;
(2)若直线
与椭圆C交于P,Q两点,直线PA与QB的斜率分别为
,
,且
,那么直线l是否过定点,若过定点,求出该定点坐标;否则,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34e01955f8c8fe2f0041b35d8d602a7.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef42faa9d21371359b8a87584bc466f7.png)
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2022-03-05更新
|
315次组卷
|
2卷引用:河南省洛阳市2021-2022学年高二上学期期末考试数学(理)试题